[P02-21] 術後鎮痛2

[P02-21-04] Effect-site concentration of fentanyl at the end of surgery predicts postoperative frequent requests of intravenous patient-controlled analgesia

〇Masato Nakasuji^1,2, Aki Okutani¹, Miwako Nagai¹, Taeko Miyata¹, Norie Imanaka¹, Masuji Tanaka¹ (1. Kansai Electric Power Hospital, 2. Kansai Electric Power Medical Research Institute)